NET
13 Wisdom is found in the words of the discerning person, but the one who lacks sense will be disciplined.
Darby
13 In the lips of an intelligent [man] wisdom is found; but a rod is for the back of him that is void of understanding.
KJV
13 In the lips of him that hath understanding wisdom is found: but a rod [is] for the back of him that is void of understanding.